JavaScript to parse a CSV string and create JSON objects based on the column headers

gistfile1.txt

function csvToJson(str) {
  var data = [], i = 0, k = 0, header = [];
  var csvLines = CSVToArray(str);

  for ( i = 0; i < csvLines.length; i++ ) {
    var line = csvLines[i];
    if ( i == 0 ) {
      header = csvLines[i];
    } else {
      var obj = {};
      for ( k = 0; k < header.length; k++ ) {
        if ( k < csvLines[i].length ) {
          obj[header[k]] = csvLines[i][k];
        }
      }
      data.push(obj);
    }  
  }
  return data;
}


// this code was found here http://www.bennadel.com/blog/1504-Ask-Ben-Parsing-CSV-Strings-With-Javascript-Exec-Regular-Expression-Command.htm
// This will parse a delimited string into an array of
// arrays. The default delimiter is the comma, but this
// can be overriden in the second argument.
function CSVToArray( strData, strDelimiter ){
  // Check to see if the delimiter is defined. If not,
  // then default to comma.
  strDelimiter = (strDelimiter || ",");

  // Create a regular expression to parse the CSV values.
  var objPattern = new RegExp(
      (
       // Delimiters.
       "(\\" + strDelimiter + "|\\r?\\n|\\r|^)" +

       // Quoted fields.
       "(?:\"([^\"]*(?:\"\"[^\"]*)*)\"|" +

       // Standard fields.
       "([^\"\\" + strDelimiter + "\\r\\n]*))"
      ),
      "gi"
      );

  // Create an array to hold our data. Give the array
  // a default empty first row.
  var arrData = [[]];

  // Create an array to hold our individual pattern
  // matching groups.
  var arrMatches = null;


  // Keep looping over the regular expression matches
  // until we can no longer find a match.
  while (arrMatches = objPattern.exec( strData )){

    // Get the delimiter that was found.
    var strMatchedDelimiter = arrMatches[ 1 ];

    // Check to see if the given delimiter has a length
    // (is not the start of string) and if it matches
    // field delimiter. If id does not, then we know
    // that this delimiter is a row delimiter.
    if (
  strMatchedDelimiter.length &&
	(strMatchedDelimiter != strDelimiter)
       ){

      // Since we have reached a new row of data,
      // add an empty row to our data array.
      arrData.push( [] );

    }

    // Now that we have our delimiter out of the way,
    // let's check to see which kind of value we
    // captured (quoted or unquoted).
    if (arrMatches[ 2 ]){

      // We found a quoted value. When we capture
      // this value, unescape any double quotes.
      var strMatchedValue = arrMatches[ 2 ].replace(
	  new RegExp( "\"\"", "g" ),
	  "\""
	  );

    } else {

      // We found a non-quoted value.
      var strMatchedValue = arrMatches[ 3 ];

    }

    // Now that we have our value string, let's add
    // it to the data array.
    arrData[ arrData.length - 1 ].push( strMatchedValue );
  }

  // Return the parsed data.
  return( arrData );
}